处方药与非处方药分类管理的形成是一个长期而复杂的过程，单就非处方药而言，很难说明其产生于什么时间。可以说，自从世界上有了药品，就有了非处方药的存在。即使是在西方药学迅速发展的近代，也几乎是所有的药品都是作为非处方药（或没有作为处方药）来管理。 进入２０世纪 The formation of prescription management of prescription and over-the-counter drugs is a long-term and complex process. It is hard to explain the time it takes to produce over-the-counter drugs alone. It can be said that since the world has drugs, there is the existence of over-the-counter drugs. Even in the modern era of the rapid development of western medicine, almost all of the drugs are also managed as over-the-counter medicines (or not as prescription drugs). Enter the 20th century